Logical purposiveness and the principle of taste

In both Introductions to the Critique of Judgment Kant seems to identify the a priori principle at the basis of aesthetic judgments with the principle that guides reflective judgment in its cognitive inquiry of nature, i.e. the purposiveness of nature or systematicity. For instance Kant writes: In a critique of judgment, the part that deals with aesthetic judgment belongs to it essentially. For this power alone contains a principle that judgment lays completely a priori at the basis of its reflection on nature: the principle of a formal purposiveness of nature in terms of its particular (empirical) laws, for our cognitive power. © Walter de Gruyter GmbH & Co. KG 2005.